The government printed a ton of money and demand for loans crashed after the pandemic started. People even paid loans down. Many companies weren't borrowing much because of supply chain issues - why borrow if you can't use it? I'm not blaming the government - unemployment went through the roof for awhile and they had to protect people. But this is a side effect that no one really saw. That the treasuries would lose a lot of value because of super rapid interest rate increases while companies start eating away at their runway because no new investment is coming.
It all makes sense today but literally no one saw this coming a couple weeks ago.